Other examples are DrawVenn ( ) and BioVenn that construct area-proportional diagrams, limited by the fact that it is not possible to create symmetric Venn diagrams with more than four sets that respect proportionality.
#Online venn diagram tool generator
Examples include Pangloss Venn diagram generator ( ) and Venny ( ), both restricted to static diagrams of up to four sets. Other programs extend the basic drawing, automating the construction of diagrams from lists of elements in each set. Many websites and graphics programs allow users to manually draw labeled Venn diagrams. Considering restrictions in aesthetics and burden on human visual ability, Venn diagrams of seven sets just seem to be too much. With a larger number of sets, symmetric Venn diagrams are easier to interpret because the reader needs less time to locate regions of interest and their boundaries, as well as set intersections. A Venn diagram could even be formed by elements with abstract shapes, but not without difficulties in showing all necessary regions and in generalizing for any number of sets. Many other shapes may be used, such as squares, triangles and spherical surface segments, the latter being a widely adopted layout proposed by Edwards. The same holds for ellipses: we cannot create a diagram with more than five sets with them. For instance, we can use circles to create a symmetric three-set diagram but we cannot use them with four or more sets and still show all possible intersections and exclusive regions. Venn diagrams may also be used as a means to explore and reason about data, but most often such diagrams provide only static views of up to four sets of data.Īlthough Venn diagrams may be built for any number of sets, the layout becomes increasingly challenging beyond four sets. A recent example can be seen in the article describing the banana genome, where a Venn diagram illustrates the relationship among six plant genomes. Sets and their unions and intersections may be conveniently displayed as Venn diagrams, a widely adopted and familiar layout. The same set comparison activities can be useful to many other research fields. InteractiVenn is freely available online at: In biological sciences it is often necessary to compare sets of data such as genes, proteins, organisms as well as other entities. InteractiVenn allows set unions in Venn diagrams to be explored thoroughly, by consequence extending the ability to analyze combinations of sets with additional observations, yielded by novel interactions between joined sets.
InteractiVenn has been used to analyze two biological datasets, but it may serve set analysis in a broad range of domains. The tool also allows obtaining subsets’ elements, saving and loading sets for further analyses, and exporting the diagram in vector and image formats. Set unions are useful to reveal differences and similarities among sets and may be guided in our tool by a tree or by a list of set unions. It offers a clean interface for Venn diagram construction and enables analysis of set unions while preserving the shape of the diagram. We have developed InteractiVenn, a more flexible tool for interacting with Venn diagrams including up to six sets. Venn diagrams are frequently employed for such analysis but current tools are limited.
Set comparisons permeate a large number of data analysis workflows, in particular workflows in biological sciences.